ignore xmitr checking while port is inactive

ignore xmitr checking while port is inactive

BZ: 41591

when hsu is inactive, all hsu accesses will be put into a queue.
It is not necessary to check the xmitr.

Change-Id: Ief9268da85c7f5d7fcb6e309658acc93e6e454cf
Signed-off-by: Bin Yang <bin.yang@intel.com>
Signed-off-by: Wang Yiyang <yiyang.wang@intel.com>
Reviewed-on: http://android.intel.com:8080/52844
Reviewed-by: Du, Alek <alek.du@intel.com>
Tested-by: Tang, HaifengX <haifengx.tang@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>